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authorAlan Stern <stern@rowland.harvard.edu>2007-08-21 15:39:21 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-12 14:55:19 -0700
commitb0d9efba3ec53468984aecef8eeaf079089f2e5a (patch)
treea372d053daddc5ff041949b80bab347317a76938 /drivers/usb/host/sl811-hcd.c
parentee7d1f3f0c32d8abe9627aa73dc62ee5bf2daf7f (diff)
downloadop-kernel-dev-b0d9efba3ec53468984aecef8eeaf079089f2e5a.zip
op-kernel-dev-b0d9efba3ec53468984aecef8eeaf079089f2e5a.tar.gz
USB: centralize -EREMOTEIO handling
This patch (as969) continues the ongoing changes to the way HCDs report URB statuses. The programming interface has been simplified by making usbcore responsible for clearing urb->hcpriv and for setting -EREMOTEIO status when an URB with the URB_SHORT_NOT_OK flag ends up as a short transfer. By moving the work out of the HCDs, this removes a fair amount of repeated code. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/sl811-hcd.c')
-rw-r--r--drivers/usb/host/sl811-hcd.c14
1 files changed, 3 insertions, 11 deletions
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index 15a93f9..e90953a 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -438,7 +438,6 @@ static void finish_request(
spin_lock(&urb->lock);
if (urb->status == -EINPROGRESS)
urb->status = status;
- urb->hcpriv = NULL;
spin_unlock(&urb->lock);
usb_hcd_unlink_urb_from_ep(sl811_to_hcd(sl811), urb);
@@ -545,17 +544,10 @@ done(struct sl811 *sl811, struct sl811h_ep *ep, u8 bank)
sl811_read_buf(sl811, SL811HS_PACKET_BUF(bank == 0),
buf, len);
usb_dotoggle(udev, ep->epnum, 0);
- if (urb->actual_length == urb->transfer_buffer_length)
+ if (urb->actual_length == urb->transfer_buffer_length
+ || len < ep->maxpacket)
urbstat = 0;
- else if (len < ep->maxpacket) {
- if (urb->transfer_flags & URB_SHORT_NOT_OK)
- urbstat = -EREMOTEIO;
- else
- urbstat = 0;
- }
- if (usb_pipecontrol(urb->pipe)
- && (urbstat == -EREMOTEIO
- || urbstat == 0)) {
+ if (usb_pipecontrol(urb->pipe) && urbstat == 0) {
/* NOTE if the status stage STALLs (why?),
* this reports the wrong urb status.
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